TM 9-2520-246-34 Section IV. REPAIR (MODEL 3053A) 3-12. General. Disassembly and assembly procedures for transmission model 3053A are almost identical to those of transmission model 3052 with the exception of the positions of fourth and fifth gears. Therefore, the repeating of these procedures is not necessary. During the disassembly and assembly procedures for the transmission, keep in mind that in transmission model 3053A the fourth and fifth speed gears are just the reverse of those in transmission model 3052, both on the main drive shaft and on the countershaft. For disassembly and assembly procedures, refer to paragraphs 3-8, 3-9, 3-10, and 3- 11. NOTE The input shaft is removed from the inside of case or towards the rear of the transmission. Section V. TEST AND ADJUSTMENT (MODELS 3052 AND 3053A) 3-13. General. change in gear noise between each shift. a. Lubrication. Remove transmission lubricant filler 3-15. Power Test. plug and make sure transmission is filled to the proper level with correct lubricant before testing. Refer to a. Operation Analysis. Operate transmission in each lubrication order LO 9-2520-209-12/1 for lubrication shift position with varying torque on input shaft and specifications. listen for unusual gear noises that would indicate gears not fully in mesh or more than normal clearance b. Preparation for Test. Assemble transmission to between the gear teeth. Pay particular attention to any an engine installed on the dynamometer. tendency to slip into neutral. 3-14. Shift Test. Shift transmission through the b. Leakage Check. During power test, check entire gear range while in operation. Shift lever should outside of transmission case and cover for lubricant shift transmission easily, without binding, and snap in leakage at gasket joints and shaft seals. Check and out of gear with no tendency to slip out of gear thoroughly all over the transmission assembly for any or slide into neutral. There should be a definite leakage or malfunction. Section VI. REPAIR AND REPLACEMENT STANDARDS (MODELS 3052 AND 3053A) 3-16. General. a. The wear limits are the same for transmission model 3052 and transmission model 3053A. b. The repair and replacement standards included herein give the minimum, maximum, and key clearances of new parts. They also give wear limits which indicate the point to which a part or parts may be worn before replacement, in order to receive maximum service with minimum replacement. Normally, all parts which have not been worn beyond the dimensions shown in the “Wear Limits” column or damaged by corrosion will be approved for service. An asterisk (*) in the "Wear Limits" column indicates that the part or parts should be replaced when worn beyond the limits given in the “Size and Fit of New Parts” column. In the “Size and Fit of New Parts” column, the letter "L" indicates a loose fit (clearance) and the letter "T" indicates a tight fit (interference). A double asterisk (**) in the “Wear Limits” column indicates that the part may be used by selective fitting as long as the resulting fit is within the tolerance specified. The letters GA in the “Size and Fit of New Parts” column mean gage. 3-17. Repair and Replacement Standard Points of Measurement. Figures 3-37, 3-48, 3-49, and 3-50 and corresponding tables 3-1, 3-2, 3-3, and 3-4 provide the repair and replacement points of measurement for transmission models 3052 and 3053A. 3-21